How to use firebase-tools as a gulp task?

[ghost]

I am trying to use firebase-tools as a gulp task. I am using the following code snippet. I see that the website deploys but gulp does not exit. If I remove the deploy task, gulp exits properly. So, I am thinking something is wrong with this deploy task. Is there anything else needed for using firebase-tools as a gulp task? Thanks.

gulp.task('deploy', ['build'], function(done) {
  fbtools.deploy.hosting({
    firebase: 'myfb',
    token: process.env.FIREBASE_TOKEN,
    public: 'public'
  }).then(function() {
    console.log('Website has been deployed to https://myfb.firebaseapp.com');
    done();
  }).catch(function(err) {
    done(error && error.err);
  });
});

[ghost]

Found this: #86